Automatic boat bailers



Dec. 4, 1956 Y Filed Jan. 7, 1955 IN V EN TOR.

Jdf/W L. D PEQS/A 44/522201- ATTOE/VEKS United States Patent O AUTOMATIC BOAT BAILERS John L. De Persia, Grand Haven, Mich.

Application January 7, 1955, Serial No. 480,496 2 Claims. (Cl. 114-485 The present invention relates to automatic boat bailers for use in speed boats, row boats, and the like, which operate to suck the water from the boat bilge by means of suction created .by movement of the boat through the water. I

The primary object of the present invention is to provide a boat bail-er which will automatically suck water out of the boat bilge as the boat moves through the water, and one which can also be used to drain water from rowboats, canoes, or the like, when the latter are beached.

Another object of the present invention is to provide an automatic boat bailer of neat appearance and one having few parts, readily assembled, and readily installed in a boat bailer which may be installed by a person having little experience and little skill, one requiring only ordinary tools for its installation in the bottom of the boat.

A still further object of the present invention is to p-rovidean automatic boat bailer having its inlet ports relatively close to the bottom surface of the boat for the purpose of sucking as much water as possible out of the boat bilge.

These and other objects and advantages of the present invention will be fully apparent from the following description when taken in connection with the annexed drawings, in which:

Figure 1 is a top-plan view of the device as installed in the bottom of the boat,

Figure 2 is a rear view and elevation of the device of the present invention as installed in the boat bottom,

Figure 3 is a side view and cross-section on line 3-3 of Figure 1,

Figure 4 is a side-view in cross-section showing the device in open condition with the ball preventing passage of water upwardly into the boat, and

Figure 5 is a view in cross-section showing the valve in closed condition.

Referring in greater detail to the drawing in which like numerals indicate like parts throughout the several views, the invention comprises a housing having a rounded nose portion 29 and rear face 11 sloping upwardly and outwardly from the bottom of the housing to the top thereof, there being a passage 12 formed in said housing extending inwardly from the top of the housing to and out of the sloping rear face 11.

Circumposed about the end of the passage 12 opening through the top of the housing and integrally carried by.

2,772,648 Patented Dec. 4, 1956 ICE 2 compress the gasket 21 against the boat bottom to seal the device in place.

A plug 22 is provided with a bore 23 extending from its lower end upwardly to a point adjacent the upper end of the plug. Inlet ports 24 are provided each side of the plug 22 adjacent its upper end, which is enlarged and provided with a shoulder 25 on which seats a second gasket 26. v

The upper end of the plug 22 is provided with the upstanding ribs 27 in the form of a cross, by means of which the plug is gripped as it is threadedly moved into the pipe section 14 from a position in which the ports 24 are open and in communication with the interior of the boat to a position in which the ports are closed. As shown in Figure 3, water is being sucked from the interior of the boat and flowing in the direction indicated by the arrows in the passage outwardly on each side of the ball 28, the boat travelling in the direction of the arrow. The ball 28 is freely floatable within the passage and is movable under pressure of the water, as shown in Figure 4, to seat itself upon the valve seat 17 to prevent passage of water upwardly into the boat.

As seen in Figure 5, the port may be screwed down sufiiciently so as to close the ports 24 and to seat the gasket 26 upon the upper end of the pipe section 14, preventing water from entering or leaving the boat.

With the housing 10 positioned on the bottom of the boat with its rear face 11 facing the stern of the boat and the rounded nose portion 29 facing the prow of the boat, water flowing over the housing 10, as the boat moves through the water, will create a suction at the end of the passage 12, sucking water through the passage from the port 24.

For rowboats and canoes, the device is used for draining water from the boat, after the boats have been lifted from the water.

While only a single embodiment of the present invention has been shown and described, it is believed that other embodiments may be made and practiced within thescope of the appended claims without departing from the spirit of the invention.

What is claimed is:

1. An automatic boat bailer comprising a housing provided with an upstanding pipe section adapted to be inserted upwardly through a hole in a boat bottom, said housing having a rounded nose portion and rear face sloping upwardly and outwardly from the bottom to the top thereof, there being a passage formed in said housing extending inwardly from the portion of the top enclosed by said pipe section to and out of the sloping rear face, means securing said housing exteriorly of and on the boat bottom with said pipe section received in the hole provided and with said face facing the stern of the boat, said pipe section being formed with an annular recess at the lower end thereof, a valve seat extending transversely across said pipe section and partially bridging the end of the passage opening through the top of the housing and having its periphery received in said recess, a freely floatable ball in said passage seatable on said valve seat to prevent passage of water upwardly through said pipe section, and a plug threadedly engaged in said pipe section at the upper end thereof, said plug being provided with a bore extending upwardly from its lower end and terminating adjacent the upper end, and ports in said plug adjacent the upper end connecting in communication with said bore, said plug being movable in said pipe section from a position with said inlet ports open and in communication with the interior of the boat to a position closing said ports.

2. An automatic boat bailer comprising a housing provided with an upstanding pipe section adapted to be inserted upwardly through a hole in a boat bottom, said housing having arounded nose portion and rear face sloping upwardly and outwardly from the bottom to the top thereof, there being a passage formed in said housing extending inwardly from the portion of the top enclosed by said pipe section to and out of the sloping rear face, means securing said housing exteriorly of and on the boat bottom with said pipe section received in the hole provided and with said face facing the stern of the boat, said pipe section being formed with an annular recess at the lower end thereof, a valve seat extending transversely across said pipe section and partially bridging the end of the passage opening through the top of the housing and having its periphery received in said recess, a freely fioatable ball in said passage seatable on said valve seat to prevent passage of water upwrdly through said pipe section, and a plug threadedly engaged in said pipe section at the upper end thereof, said plug being provided with a bore extending upwardly from its lower end and terminating adjacent the upper end, and ports in said plug adjacent the upper end connecting in communication with said bore, said plug being movable in said pipe section from a position with said inlet ports open and in communication with the interior of the boat to a position closing said ports, and means in said housing adjacent said face restricting the movement of said ball out of said passage.

References Cited in the file of this patent UNITED STATES PATENTS 1,602,093 Andrew Oct. 5, 1926 FOREIGN PATENTS 91,918 Sweden Apr. 1, 1938 

